Tube-forming machine



Feb. 16 1926.

J. D- REIFSNYDER TUBE FORMING MACHINE Filed Oct. 30, 1924 6 SheetsF-Sheet 1 INVENTOR 27 3. YM

ATT RNEY5 Feb. 16 1926. 1,573,574

J. o. REIFSNYDER TUBE FORMING MACHINE Filed 001;. 30,

6 Sheets-Sheet 2 24 41.! Mat ATTORNEYS Feb. 16 1926. 1,573,574

J. D. REIFSNYDER TUBE FORMING MACHINE F1166 061.. 30. 1924 6 sheets-Sheet 5 INVENTOR 445M? BY 7%MA-4X ATTORNEY Feb. 16 1926.

J. D. REIFSNYDER TUBE FORMING MACHINE Filed Oct. :0. 1924 6 Sheets-Sheet 4.

4:. A'ITORNEY 6 Feb. 16 1926.

J. D. REIFSNYDER TUBE FORMING MACHINE 6 Sheets-Sheet 5 Filed Oct. 30. 1924 INVENTOR W 19.

,Awrm

ATTORNEYJ J. D. REIFSNYDER TUBE FORMING MACHINE Feb. 116 1926.

Filed Oct. 30, 1924 ga ma-sheet 6 INVENTOR I 5M4 )M -44 ATTORNEYS Patented Feb. 16, 1926.

NEW YORK. QSSIGNOB N. Y., A CORPORATION OF NEW YORK.

PATENT OFFICE.

1'0 TULIP CONTAINER TUBE-FORMING HACKNE- Application filed October so, 1924. Sel'lfll'lfl. 740,119.

7'0 all whom it may concern:

chines,

' blanks are successively Be it known that I, J AMES D. RnIrsNrnnn,

a citizen of the United States, and resident of the city of New'York. borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Tube-Forming Maof which the following is a specification.

This invention relates to tube forming ma-. chines, and more articularly to machines for forming from lanks tubes of paper or the like material which are to form the wall portions of containers.

An object of-the invention is to provide a simple, relatively inexpensive, ellicient and durable machine capable of rapidly pro ducing tubes of such uniformity in size and finish as may be used in automatic assembling machines for forming containers.

Before taking up a detailed description of the machine, a general description will be given setting forth some of the most important features in a general way.

The machine comprises three primary features or units coordinated and cooperating in proper timed relation, driven by a com- -mon power shaft and mounted on a common base or table supported on suitable legs or pedestals' Theseumits may be briefly described as (l) mechanism for feeding the blanks (2 mechanism for winding the blanks an ejecting the wound tubes, and (3); mechanism for holding the ejected wound tubes in wound position until an applied adhesive has partially set and for ejecting the formed tubes. The blank feeding means is adapted to separate a single blank from a. stack of blanks, move each successive blank transversely to an intermediate feeding station, and thence to a second feeding station from where th fed to a winding mandrel. Duri the last step the adhesive is applied to the blank. The winding mechanism comprises a single Wllldlllg mandrel rovided with suction means to hold the blanks and .with ejecting means to eject the wound tubes and the mandrel is adapted to be intermittently rotated by suitable mechanism to wind the blanks of material Into tubes. The third unit comprises a receptacle carrier chain to receive th ejected from proin'ded with receptacles e successive tubes 'as they are the mandrel; and means is provided, for pressing the tubes into the receptacles to hold them in wound position until the adhesive has artially set. Ejector means is provided for ejecting the formed tubes after they have remained in the receptacles a predetermined time.

The invention consists in the novel features, of construction, arrangement and combination of parts embodied by way of example in the ap aratus hereinafter described as illustrating t e preferred form of the invention. and the invention will be more particularly pointed out in the appended claims. Further objects and advantages of the in-. vention will more fully appear. from the following description taken in. connection with the accompanying drawings which show, by way of example, the present preferrcd embodiment of the invention.

Referring to the accompanying drawings in which the same reference characters in dicate the same parts in the various views Fig. 1 is a plan view of the machine. Fig. 2 is a section at line 2-2 of Fig. 1. Fig. 3 is a view showing a finished tube in perspective. I

Fig. 4 is. a section at line 4-4 of Fig. 1. Fig. 5 is a section taken at line 5-6 of Fig. 6 represents a blank of material with the adhesive ap lied to a ztion thereof.

Fig. 7 is a detail of tli: blank gripper shown in Fig. 4.

Fig. 8 is a diiferent view of the same part. Fig. 9 is a view showing the sup rting table and the stack of blanks carrieii thereby, and the sucker for separating each succassive blank from the stack.

Fi 10 is a'section through the winding mand rel and ejector and one of the receptacles for receiving the wound tube. F Fig. 11 is a section at line 11-11 of ig. 12 is a section at 12-12 of Fig. 1 with the parts shown in a different ition of the cycle of o eration to better i ustrate the movement of the associated parts.

Fi 13 is a section of a portion of the man rel rotating means and shows the.

worm wheel parts in the same relative position as Figs. 1 and 2.

Fig. 14 is a fragmentary view of parts shown in Fig. 12 from a different angle.

M ain power dmi've.

Referring particularly to Figs. 1 and 2,; the three units, together with the power connections for operating the same, are mounted on a table or base 1, supported by four legs or pedestals 2. A jack shaft 3 is journaled in suitable brackets such as 4 and on its outer overhanging. end carries a clutch pulley 5 which is connected to a suitable source of power by means of a belt 6 or other suitable means, so that when the clutch is moved into operative osition the shaft 3 is rotated continously. ounted on the shaft 3 and adapted to be rotated therewith is a worm 7 in mesh with a worm wheel 8 carried by a drive shaft 9 extending at ri ht angles to shaft 3 and journaled in suitable bearings 10 and 11 attached to table 1, so that the shaft 9 may be continuously driven by shaft 3 through the worm 7 and 8. This shaft 9 carries various cams attached thereto and adapted to be rotated thereb for operating the various parts to be described hereinafter. A bevel gear 12 is keyed or otherwise suitably attached to the shaft 9 and adapted to be rotated thereby and is in mesh with a cooperating bevel gear 13 carried by a vertical shaft 14 (Fig. 2) journaled in a bearing, formed as a part of the bearing 10, and a bearing 15 attached to the base 1. y

Attached to the lower end of the vertical shaft 14 is a bevel gear 16 inmesh with a cooperating bevel gear 17 attached to and carried by a drive shaft 18 journaled beneath the table in suitable brackets 19 and 20 and adapted to be rotated through the connections above enumerated when the shaft 3 is rotated. This drive shaft 18 carries various cams attached thereto (Fig. 1) and adapted to be rotated thereby for operating the various parts to be described hereinafter. A bevel gear 21' (Figs. 1 and 4.) is attached to the shaft 18. and is in mesh with a cooperating bevel gear 22 attached to and carried by a shaft 23 journaled in the bracket 20; and bevel gear 24 is also attached to and carried by the shaft 18 and in mesh with a cooperating bevel gear 25 attached to and carried by a vertical shaft 26 journaled in brackets 27 and 28 (Fi 4), so that as the shaft 18 is rotated the afts 23 and 26 will also be rotated, for the purpose of operating parts of the feeding an adheslve applying mechanism to described in detail hereinafter.

Blank feeding mechanism.

A support 29, for supporting a stack of blanks, (Figs. 4, 1, and 9) is carried by a jack screw 30 and slidably engages the guide rods 31 and 32 (Fig. 9) which prevents 1t from rotating, but permits it' to be raised and lowered. Thejack screw is supported by a screw block 33 held in position by a bracket 34 attached to the under side of the table 1. The block 33 is provided with a spring pressed screw thread segment 35 adapted to be partially disengaged from the jack screw to thereby permit the same to be lowered without rotating the block 33. The lower end of the screw block 33 carries a ratchet wheel 36 which is adapted to be rotated, in the following manner, to thereby rotate the block 33 which in turn will raise the jack screw 39 and the support 29 carried thereby. A pawl arm 37 is mounted on a portion of block 33 free to rotate thereabout and held in position by a ring nut 38 (Fig. 4). A pawl 39 is pivoted on one end of this lever and is held in engagement with the ratchet teeth by a spring or other suitable means. The other end of the pawl lever 37 is pivotally connected to a link 40 (Fig.1) which passes beneath the table 1 and is connected at its other end to a bell crank 41 which is pivotally supported from the table 1. The other end of the bell crank is connected to a cam rod 42 which is provided with a cam roller 43 in engagement with a cam 44 which is attached to the shaft 18 and so formed and positioned that it will operate the ratchet mechanism to raise the stack of blanks an amount substantially eeual to the thickness of one blank, for each ank fed from the stack, in the manner and for the purpose to be described more fully hereinafter. The cam rod 42 is provided with a bifurcated end which straddles the shaft 18 thereby supporting this end of the cam rod. The cam roller intimate contact with the cam 44 by a suitable tension spring as is well understood in the art, but which spring is eliminated from? the drawings the drawings.

A sucker 45 (Fig. 9), for separating successive blanks individually from thestack, is supported by an arm 46 and is connecte to a suitable suction means such as a vacuum pump, designated as 47 (Fig. 1), by means of suitable connections such as a hose 48, a control valve formed in the valve body 49, and a i e 50. This valve has a cylinder51 forme 1n the body 49 and in communication with the sucker 45 and suction means 47, by means of the ports 52 and 53 respectively. A piston 54 (Fig. 11) is positioned within this cylinder and is provided with a transverse bore 55 adapted to register with for the sake of clearness 1n the ports 52 and 53 when the piston-1s at the upper end of its stroke. A port 56 is formed on the side of the piston and adapted to connect the port 52 with the atmosphere by way 43 is held in downwardly projecting of a vent hole 57 when the piston is near the lower end of its stroke. A cam 58 is attached to the drive shaft 9 (Fig. 1) and is adapted to be rotated thereby and is so formed and positioned that it will operate the valve to connect the pump 47 to the sucker at the correct time and the sucker to the atmosphereat other times as will be more fully described and better understood under Operation hereinafter. A compression coil spring 59 is provided for keeping the piston in intimate engagement with the The sucker arm 46 is slidably mounted ona vertical guide rod 60 (Fig. 9) attached to the base 1 and is connected to a second slidable member or block 61, which is also mounted on the guide 60, thereby permitting the arm 46 to be moved up and down on the guide rod 60. Pivotall connected to the block 61 is which is connected at its other end to a crank 63 pinned to a crank shaft 64 supported in bearing brackets 65 and 66 attached to the under side of the base 1. The shaft 64 carries pinned to its other end a crank 67 which is pivotally connected to a cam rod 68 (Figs. 2 and 1) carrying a cam roller 69 (Fig. 1) adapted to ride on a cam 70 carried by and connected to the drive shaft 18 and so formed and positioned that as the shaft 18 rotates the cam will move the sucker 45 up and down in proper timed relation with the other associated parts of the machine as cam 58.

will be more clearly understood hereafter.

Theend of the cam rod 68 is bifurcated and straddles the shaft 18 acting thereby as a guide, and a tension spring (not shown) holds the cam roller in intimate contact with the face of the cam, in the usual manner such as is well understood in the art.

A gripper 71 for moving successive blanks from the stack (F ig, 4 is carried by a gripper arm 72 supporte at one end by and free to be moved with respect to a frame 73 supported by a leg 74 attached to the base 1 and a bracket 75 connected to the-table 1. The other end is supported by a slide bearing 7 6 supported from the base 1 and 1s PIV- otally connected to a link 77 (Fig. 5) connected to a cam lever 78 pivoted about a spindle 79 avhich is.supported by the bracket 28. The cam lever 78 carries a cam roller 80 which is ada ted to ride on a cam 81 attached to and a apted to be rotated with the shaft 26 and is so formed and positioned that as the shaft 26 rotates the cam will reciprocate the gripper back and forth in a manner now to be described. A tension spring (not shown) holds the roller in intimate contact with the face of the cam, in the usual manner as is well understood by those skilled in the art. A trip rod 82 15 attached to the frame 72 and projects in the path of travel of the gripper 71 and is adapted to ing a link 62, ig. 5)

strike the trigger 83 7 and 8) as the gripper is moved forwar the sucker has lifted the top blank, thereb causin the gripper to engage this blan which 18 carried back as the gripper is moved back by the cam. A second trip rod 84 (Fig. 4) is adjustably attached to the bear- 6 and project in the path of travel of is adapted to strike the trigger 83 as the gripper is moved back, thereby releasing the blank which falls out as the gripper continues to move back a short distance beyond this point. The gripper per se is constructed in the following manner (Figs. 7 and 8). Two bearin 8585 are fastened to a bracket 86 which is attached to the gripper bar 72, and carry a spindle 87 to which is keyed the trigger 83 at a point between the bearings. Pinned to the other end of the spindle is a lever 88 which is pivotally connected to a link 89 pivotally connected to a yoke 90 which is pivotal] attached to a rigid finger 91 connected to the bracket 86. A resilient finger 92 is attached to a cam block 93 ivotally attached to the bracket 86. It will therefore be seen that as the trigger 83 is tripped from its straight side the the gripper 71, an

oke 90 traveling on the surface of the cam lock 93 forces the resilient finger 92 toward the rigid finger 91 to thereby grip the blank therebetween, and as the trigger is tripped from the bevel side the yoke is moved in the opposite direction thereby removing the force against the cam block and releasing the ank.

A feed table 94 (Figs 1, 4 and 5) is sup ported by suitable egs attached to the base 1, and bars 95 are set on edge thereon to form a runway for the blanks at the intermediate feedingstation (Fig. 1) and are adapted to receive the blanks as they are pulled off the stack by the gripper 71. In plan these bars are arrangedto conform to the gereral shape of the blanks, and in this instance are laid in an arc. An arcuate member 96 carrying upright fingers 97 is rigidly attached to an o crating arm 98 (Figs. 4 and 5) support'e by the table 94 and slidably positioned in suitable guides, one of which is formed in the bracket 76, and pivotally connected to a link 99 (Fig. 1) which is pivotally connected to a cam lever 100 (see also Fig. 5). The cam lever 100 is pivoted about the spindle 79 and carries a cam roller 101 which is adapted to ride on a cam 102 attached to and ada ted to be rotated with the shaft 26 and so ormed and positioned that as the shaft 26 rotates the cam will move the arcuate bar 96 and attached fingers 97 forward after the blank has fallen on the runways 95 thereby moving each successive blank from the intermediate feed station to the final or longitudinal t the time when feed station to be described next. A tension spring (not shown) holds theroller in intimate contact with the face of the cam, in the usual manner as is well understood in the the blanks are fed forward, transversely by lever the fingers 97, they are de guideway. A feed shoe 10 5) is slidably mounted in an arcuate slot 106 formed in the table 94 and is pivotally connected to a link 107 pivotally connected to one. end of a cam lever 108 pivoted at its mid-portion about the spindle 79, and this 'ted' in this roller 109 adapted to ride on a cam 110 attached to and adapted to be rotated with the shaft 26 and so formed and positionedthat as the shaft 26 rotates the shoe 105 will be moved forward after the blank has been deposited in the guideway between the guide strips 103 and 104. A tension spring (not shown) holds the roller in intimate contact i 111 (Figs. 4 and 5) guideway and supported by the guide strips which also carries the movable with the face of the cam, in the usual manner as is well understood in the art. Rods are placed across the 103 and 104 (Fig. 5) on the other side oi the glue roll away from the winding mandrel. These serve to hold the blank up from the glue roll as will be better understood hereinafter and the function of which will be described under Operation.

A stationary friction roller is pivotally supported by a bifurcated member 113 which is adjustably attached to an L bracket 114 supported-by a bracket 115 attached to the base 1. A movable friction roller 116 is carried by a bifurcated arm 117 attached to a supporting bar 118 and is positioned above't e roller 112, and adapted to be moved toward and away from the roller 112 as will be described presently. Presser rollers 119-419 on spindles 120120 are attached to the bar 118'and are positio'ned over the glue roll and are adapted to be moved up and down with the bar 118 friction roller 116. This bar 118 is attached to a crank rod 121 (see also Fig. 2) which also has rigidly attached thereto an apron 122 and is slidably mounted in a giiideway formed in the bracket 115. At its lower end ,the crank rod 121 carries a crank pin 123 to which is pivotally connected a link 124 which is pivotally connected at its other end to one end of a bell crank 125 pivoted free to rotate about the shaft 64, and the other end of thebell crank 125 is pivotally (Figs. 1 and 108 carries at its opposite'end a cam,

112 (Fig. 5) 1 connected toonefend of a cam "rod 126 (Fig.2) which carries at its other end a cam roller 127 (Fig. 1) adapted to ride on a cam 128 carried'by and connected to the drive shaft 18 and so formed and positionedthat as the shaft 18 rotates the cam will move the bar-118 (Fi 5) up and down in such timed relation t at after the fed shoe has moved the blank forward so that the mandrel rips the end of the blank, and immediate y prior to the rotation ofithe mandrel, the bar is moved the apron 122 is lowered, the rollers 119-119 press the blank in intimate contact with the glue roll and the friction rolls are made to engage the blank and prevent it from overrunning or sli'ping sideways as it is wound on the man rel.

Adhesive applying means A glue roller 129 (Figs. 4 and 5), for applyl adhesive to the blanks of stri materia is mounted on and rotatable wi a shaft 130 journaled, in bearings 131 attached to the under side of the table 94, and is so positioned that's. portion of its peripheral surface projects upward through an aperture in the table 94 and above 1'. e upper surface thereof. .The is adapted to be rotatably uousslfi' through a sprocket 132 fastened on the aft 130 and a apted to receive a driving chain 133 which engages a driving sprocket 134 mounted on and adapted to be rotated by ashaft 135 'ournaled at one end in a bearing 136 and aving its other end connected to a universal joint 137 which is attached to the shaft 23 driven from the shaft 18 as above set forth. The shaft 135' carries a s iral gear 138 fastened thereto glue roller 129 and adape to be rotated thereby and P081 tinned tween the sprocket 134 and the bearing 136. This gear is 111 mesh with a cooperating spit-ah gear 139 fastened on and a apted to rotate a vertical shaft 140 join.- naled in a 'becrng formed integral with the hearing 186' at its lower end and at its upper end in bearings formed in the bracket 141 attached to the base 1. The shaft 140 carriesatits upper end a worm 142', attached thereto and adapted to be retated'thereby, and in ement with a worm' wheel 113 conn to and adapted to rotate a shaft 144 on which is mounted* an adhesive feed roller 145 attached thereto and adapted to be rotated thereb continuously to feed the adhesive to the 5 no roller when the machine is in'operation. This shaft 144 and feed roller 145 are supported, free to be rotated, in two bearing arms 146 and 14 which are pivotall mounted on supporting brackets 148 a 149, respective a which are attached to the table 1.

aring 146 is part? cut awa as shown The in the dotted lines on g. 5 an the beardown and simultaneously riven oontining 147 is provided with a bushing 150, to which the worm wheel 143 is directly attached, adapted to rotate therein but held against longitudinal movement and having a square recess adapted to engage a square end portion on the shaft 130. The bracket 148 has an upwardly extending arm 151 formed integral therewith and pivotally at tached to this arm is an arm 152 carrying an adjust'ng set screw 153 in threaded engagement therewith and adapted to contact with the bearing arm 146. The bracket 149 has an upwardly extending arm 154 formed integral therewith and this arm carries an adjusting set screw 155 in threaded enga ement therewith and adapted to contact wlth the bearing arm 147. A glue pan 156 for holding glue or other suitable adhesive is supported on suitable supports such as 157, which are attached to the base 1, in such a manner that the glue pan may be removed from the machine to replenish or change the adhesive contained therein. The glue roller 145 dips in the glue pan and is adapted to be held againstthe glue roller 129 by the set screws 153 and 155 for the purpose of supplying adhesive to the glue roller. In order to remove the pan 156' the set screws are backed out, the arm 152 is rotated to the left about its pivot, the bearing arm 146 is swung outwardthe shaft 144 being supported at this end by the knurled end, the

shaft and rollerare ulled out axially until the square end is wit drawn from the bushing 150 which together with the attached worm wheel 143 remains in the bearing, and the roller 145 is then lifted sufiiciently to allow the pan to be withdrawn.

MandreZ-suction means:

161 is formed on the inside extending in" an axial direction, and apertures 162 in the periphery of the mandrel are in communication therewith. The end of the cavity is 7 open and is in communication with an annular port 163 formed in the port ring 164 which is secured to the bracket 160. The annular port 163 is in communication, by means of a tubular connection such as a hose 165, with a valve (not shown formed in the valve body 49 (Figs. 2 an 11) and similar in all aspects to the valve 54- controlling the sucker 45. The mandrel valve, not shown but identical to valve 54-55 is located adjacent to the valve 54-55. The mandrel valve is connected to the vacuum pump 47 through the connecting hose 5O- in common with the valve for the sucker 45. The mandrel valve is operated by a piston 54 (Fig. 2) in engagement with a cam 58', carried on the drive shaft 9 and adapted to be rotated thereby, and 13 so formed and positioned that as the shaft rotates the cam moves the piston to open the "alve at a time when the end of the blank is over the apertures 162 (Fig. 10 thereby applying suction to hold the blan on the mandrel during the w' ding of the blank. As soon as the blank is wound the cam moves the piston 54 down until the vent hole 57' is in communication with the apertures 162 thereby connecting the 8. ertures with the atmosphere, which relationship is confiinued until the next blank comes into proper position to be wound.

M andreZ-wimiing means.

The mandrel spindle (Figs. 2 and 10) is provided with a spur gear 166 formed integral therewith and in driving engagement with a cooperating gear 167 keyed on a shaft 168 (Figs. 12 to 14) journaled for rotation in brackets 169 and 170; in which brackets are also formed the bearings 160 and 160' respectively, abovereferred to as supportin the mandrel. A ratchet disc 171 is secure to the shaft 168 and gear 167 and concentric therewith and carries pawl recesses 173, 17 3', 174 and 174 for purposes to be described presently. A pawl arm 172 (Figs. 12, 13 and 14), is pivoted on the shaft 168 free to oscillate thereabout, and carries at its up er end a pawl 175 lying in the plane of the iso 171, adapted to engage the recesses 173 and 173 and spring pressed toward the disc by a compression coil sprin 176. A release rod 177 is slidably carried y the pawl arm 172 and its up er end is in engagement with a projection rom the pawl 175 (Fig. 14). The lower end of the rod 177 projects beyond the periphery of the disc 171 and is adapted to be engaged by a finger 178 formed integral with a locking bolt 179 provided with a stem 180 slidably supported in a bearing formed integral with the brack et 170 (Fig. 12) and adapted to be moved longitudinally with respect thereto. The lower end of the stem 180 is pivotally connected to a link 181 which is ivotally connected to the mid-portion oi a lever 182 pivoted at one end to the bracket 170 with its other end resiliently held toward the base 1 by means of a tension coil spring 183 for-a pnrposeto be apparent later.

A cam yoke 184 is pivoted at its lower end to the lever 182 intermediate the link 181 and the spring 183. This yoke is provided with a longitudinal slots surrounding the shaft 9 thereby forming a guide for the cam yoke, and at its upper end carries a cam the timed relation to be described following. The pawl arm 172 is pivotally connected to one end of a link 187 which is pivotally connected at its other end to a cam lever 188 pivoted at its lower end to a bracket 189 attached to the base 1 and carries at its mid-portion a cam roller 190 adapted to ride in a cam groove 191 formed in a cam 192 which is keyed to the drive shaft 9. The cam groove is so formed and positioned that it will operatethe pawl arm in timed relation with the finger 178 and bolt 179 to operate the mandrel and position the same in the manner that will be better understood by now describing that cycle of the operation which has to do merely with the intermittent rotation of and proper positioning of the mandrel 158.

Attention is here called to the fact that the parts in Figs. 12 and 14 occupy a different position in the cycle of operation from that shown in the other views, while in Fig. 13 the parts occupy the same relative position as the parts in all other views exclusive of Figs. 12 and 14. It is thought that in this way the various parts and their functions can be illustrated to better advantage.

Starting with Fig. 13 the pawl 175is in engagement with the recess 173 and the bolt lock 17 9 is disengaged from the recess 174.

As the cam 192 is rotated the arm 172 moves forward carrying with it the pawl 173. disc 171 and gear 167 which is in mesh with the gear 166 and rotates the same, to thereby rotate the mandrel 158 approximately a whole number of revolutions plus a fraction of a revolution. This is the winding period. This rotation continues until thecam roller 190 reaches the idle point in the cam groove 191. at which time the mandrel is at rest during the idle period defined by the cam 192. This is the ejecting period, i. e. the period during which the tube is ejected from the mandrel. The cam roller 190 is now moved back by the cam groove 191 thereby moving the arm 172 back and hence rotating the mandrel in the reverse direction but only for the said fractional revolution to bring the apertures in the mandrel in the proper upright position to receive the next blank. At this time-immediately after the mandrel has been rotated a fractional revolution in the reverse direction--the lower end of the rod 177 has moved over the finger 178 (Figs. 12 and 14) and this finger, together with the bolt 179, is moved up by the operating cam 186 and associated mechanism to thereby release the pawl .175 from recess 173' and at the same time lock the disc 171 by seating the lock bolt 179 in the recess 174. The arm 172 continues to move back until it reaches the dotted position in Fig. 12

at which time the lock 179 is withdrawn from recess 174 and simultaneously the finger 178 releases the rod which allows the pawl 175 to be spring pressed into recess 173 by the coil spring 176 thereby completing the cycle of the winding mandrel. It is to be understood that the recesses are step by step progressively moved around in an anticlockwise direction (Figs. 13 and 14) since the disc 171 is rotated a greater distance in that direction than in a clockwise direction during each cycle; therefore the numerals designating these recesses hold for any one cycle only as applied to each re spective recess, and therefore only relatively designate the respective recesses during each cycle. These recesses are positioned 90 apart on the disc 171 and the gear ratio between the gears 167 and 176 is 8:1 so that for each 90 of rotation of the disc 171 the mandrel is rotated 2 revolutions. The forward movement of the pawl 175 is sufi'icient to move the gear 167 an angular distance greater than 90, and therefore, as stated above, the mandrel is rotated a whole number of revolutions plus a fraction of a revolution. \Vhcn the pawl 175 is moved back to the position designated as 173 it engages the succeeding recess, which was designated in the prior cycle as 174, but has now been moved'into the position 173.

A form roller 193 (Fig. 12), for forming the blanks as they are wound on the mandrel 158, provided with a spindle 194 is pivotally mounted in a yoke 195 pivotally supported by a projection from the bracket 169, in such a manner that the roller lies adjacent the mandrel 158 with the surface of the roller and mandrel axially parallel. The yoke 195 has an arm 196 extending downwardly therefrom and integral therewith. This arm is pivotally connected to a cam rod 197 (Fig. 1) which carries, pivotally attached thereto, a cam roller 198 adapted to ride on a cam 199 which is integral with the drive shaft 9, and so formed and positioned that it will operate the roller 193 in timed relation with the winding mandrel, in such a manner that as the blank is fed to the mandrel and the end held thereagainst by suction, the roller will engage the blank and form the same as it is wound on the mandrel: After the blank is wound the roller will be lifted and thereby release the wound blank for ejection. The end of the cam rod 197 which carries the cam roller is bifurcated and in straddling engagement with theshaft 9 to thereby guide the cam rod movement, and a collar integral with the shaft is provided for holding the rod 1n proper position axially of the shaft 9 as is well understood by those skilled in the art. A tension coil spring (not shown) is [l1 andrel-ejecting.

The mandrel spindle 159 (Fig. 10) is provided with an axial bore throu h which xtends an ejector rod 200 adapte to be moved axially thereof. One end of the rod extends within the hollow mandrel 158 and carries at this extremity an ejecting spider havin radiating arms 201 which extend througi slots 202 formed in the mandrel shell and extend axially thereof. A curved guard member, such for example as the ring 203, is attached to the outer ends of the arms 201 and surrounds the mandrel. The other end of the ejector rod 200 is slidabl supported by a bearing 204 formed in a racket 205 which is attached to the bracket 170 and projects beyond the bearing 204. An adjustable stop collar 206 is attached to this end of the rod and a buffer ring 207 of rubber or other su table material is positioned between this collar and the bearing 204. A tri stop 208 is pinned to the rod 200 at a point intermediate the bearing 160' and the bearing 204 and a compression coil spring 209 surrounds the rod 200 and is restrained between the trip stop 208 and the bearing 204. An operating bell crank 210 (Fig; 1), for cocking or setting the ejector, is pivotally mounted on a projection carried by the bracket 170, and one end is adapted to engage a fiat face on the stop 208. The other end is pivotally connected to a cam rod 211 (Fig." 1) which carries a cam roller 212 adapted to ride on the face of the cam 213 which is integral with the drive shaft 9 and so formed (1 positioned that as the shaft 9 rotates tlifi bell crank will be moved to cock or set the ejector rod in timed rela tion with the rotating mandrel in a manner to be described following.

The cam rod has the usual bifurcated end slidably engaging the shaft 9 andtension means for Keeping the roller on the cam face, similar to those described heretofore. Another trip stop 214 (Fig. 10) is slidably mounted in the bracket 205 and is spring pressed upwardly by a compression coil to move the ejector rod 200 ack until the beveled rear face of the trip collar 208 passes over the beveled top of the trip 214 and the trip holds the ejector in cocked position; then while the mandrel is rotating to wind the tube the bell crank is moving in the o posite direction. When the tube is woun and the forming roller 193 is lifted, the end of the bell crank passing through the slot in the link 218 has reached the end of the slot and continues on until the link 218 moves the crank 217 to operate the trip 214 tothereby release the ejector, which is driven forward by the spring 209.

Tubereceptacles.

A plurality of tube receptacles 219 (Figs. 1 and 2) are mounted between receptacle conveyors such as two continuous chains 220220' mounted on the sprockets 221- 221' and 222-222 respectively, and adapted to be moved thereby. These receptacles are adapted to receive the wound tubes and hold, them in a wound position while the adhesive is allowed to partially set, and then carry them clear of the winding mechanism and allow them to be ejected. The sprockets 221 are provided with an axle 223 pivotally supported in brackets 224224' attached to the base 1 and the sprockets 222 are mounted on a driving shaft 225 which is supported free to rotate in brackets 226-227 attached to the base 1. Pinned or otherwise suitably attached to the shaft 225, at'a 'point adjacent to the bracket 226, is a ratchet wheel 228 adapted to be driven by a awl 229 connected to an arm 230 which is pivotally supported on the shaft 225 free to oscillate thereabout and is pivotally connected to a link 231 which'passes down through a slot in the base 1 and is pivotally connected to a cam arm 232 pivoted at its other end to a bracket 233 attached to the under side of the base 1. The cam arm 232 carries pivotally pinned intermediate its two ends a cam roller 234 adapted to ride on the face of a cam 235 mounted on and adapted to be rotated by the drive shaft 18 and so formed and positioned that as the shaft 18 rotates the receptacles will successively come oppos'te the winding mandrel, each at a time prior to the ejection of the wound tube from the mandrel-the cam and ratchet mechanisni moving the receptacles successively through an angle of 90 or turn with respect to the sprockets 221 and 222. The

' cam roller 235 is held in intimate contact with the face of the cam by suitable means such as a tension spring (not shown).

A presser member 236, Figs. 1 and 2) adapted to press the woun tubes into the receptacles, is mounted on a vertically reciprocable rod 237 slidably mounted in a bracket 238 attached to the base 1. The lower end of this rod is pivotally connected to one end of a cam lever 239 which is pivotally supported at its mid-portion by a bracket 240 attached tothe base. 1 and the other end of which carr es a cam roller 241 adapted to ride on the face of the cam 242 attached to and adapted to be rotated by the drive shaft 9'and so formed and positioned that as the shaft 9, rotates the presser 236 will be moved down and up in such timed relation with the carrier chains 220 that as each receptacle passes beneath this presser it will operate to press the tube carried thereby into the rece taele.

An ejector 2 13 (Figs. 2 and 1) for ejecting the finished tubes from the receptacles, is formed integral with the slotted rod 244 which is slidably supported at one end in a bracket 215 attached to the bracket Q24 and the other end, which is provided with the slot, is supported by the shaft 223. A block 246 is attached to the rod 244 by means of a set screw and is pivotally connected to one end of a link 24} which is eonnected at its other end to a crank arm 2-18 and is pivotally mounted at its mid-portion on the bracket 224. The lower end of the cam 218 is pivotally connected to a cam rod 249 which carries pivotally mounted thereon a cam roller 250 adapted to ride on a cam 251 mounted on and integral with the shaft 18 and so formed and positioned that as this shaft rotates the cam will move the ejector 243 in such timed relation with the receptacle carrier that the tubes will be successively loosened from their respective receptacles as the receptacles reach the ejector position. The end of the cam arm 249 is bifurcated and straddles the shaft 18 to thereby guide and support the arm. and spring means (not shown) serves to hold the cam roller in intimate contact with the cam surface.

The tube receptacles, above. described, may be formed as a part of the machine such as is shown and described in my copending application for U. S. Patent Ser. 13,538, filed July 14, 1925, which discloses a machine for assembling containers comprising tubular and'bottom portions. So that instead of ejecting the tubes from the tube making machine into the containers shown in the present application, the wound tubes might be ejected directly into the containers shown in the copcnding application above referred to.

A stack of blanks of strip material, cut to proper shape, are placed on the support 29 (Fig. 4); and the support is raised to its proper level by pulling out the block 35 to release the jack screw, lifting up the support, and then allowing the block 35 to he spring pressed back into engagement with the jack screw to thereby maintain the support in that position. The sucker 45 now moves down into contact with the top blank, the suction is applied, and the sucker is lifted up carrying with it the top blank. The gripper 71 moves forward, the trigger 83 engages the trip 82 and the fingers 91 and 92 (Fig. 7 grip the blank. The gripper moves back, the trigger engages the release trip 84, (Fig. 4) and as the trigger moves beyond this position thcblank is deposited on the runway of the intermediate feeding station. The bar JG, carrying the fingers 97-, moves forward and the blank previously deposited is moved to the final or longitudinal feed station (Fig. 1). The feed shoe moves forward and the end of the blank is positioned over the apertures in the winding mandrel (Fig. 5). The bar 118 is lowered thereby lowerin the apron 122, the presser rolls 119, which press the blank against the glue roller, and forcing the friction rolls 116 and 112 together to thereby frictionally engage the blank to hold it at the proper tension and in position as it is wound.

O pemtz'0n- Winding.

The cycle will be started with the winding mandrel in the last stage of its idle period, at which time the end of the blank has been positioned over the apertures of the mandrel, and the suction is operating to hold the end of the blank to the mandrel. The former roll 193 (Fig. 5) is now lowered, and the winding mandrel is rotated, in the manner described in detail heretofore, for a complete number of revolutions plus a fraction of a revolution. This is done to insure the proper winding of the tube so that the outer seam of the tube will be properly made. )Vhen the mandrel has completed its rotation to wind the tube, there is a slight pause before the former roll 193 is raised. This roll is now raised and the ejector 201 is operated to eject the wound tube into the receptacle which at that time is in axial alignment with the mandrel (Fig. 10). The receptacle is moved forward 4 turn of the sprocket (Fig. 2) and the presser 236 moves down to force the tube into the receptacle. The receptacle is moved forward, during which time the above cycle is repeated, and after a predetermined time, during which the adhesive of the tube partially sets, the receptacle reaches the ejecting station where the ejector 2-13 is moved forward to loosen the tube from the receptacle and then as the next movement of the receptacle occurs the formed tube falls out into a suitable container and is ready to be used. The time during which the setting of the adhesive occurs, between the mandrel and the final ejection, may be fixed as desired, according to the length of the receptacle carrier chains 220.

The ratchet 35 is now rotated to rotate the jack screw 30 and thereby raise the support and blanks carried thereon a height equal substantially to the thickness of one blank. This completes one cycle of operation..

It will therefore be seen that from the time the blanks are placed in the machine until the tube is completed and delivered the 1 operation is entirely automatic, being performed entirely by the machine, without the intervention or aid of an operator, or natural force.

Having thus described my invention with I that other changes and modifications may be made therein without departing ,from the spiritand scope of my invention, and I aim in the appended claims to cover such changes and modifications as are within the scope of the invention.

Having thus described myainvention, what I claim as new and desire to secure by Letters Patent is: s

1. In a machine for making tubes, the combination of a stationary intermittently rotatable mandrel, means for rotating said "mandrel to form tubes from strip material,

receptacle means movable in the axial plane of the mandrel toward and away from said mandrel about an axis transverse thereto so as to be brought intoaxial alignment therewith and in timed relation thereto, and means for ejecting said wound tubes into said receptacle means as said receptacle means comes opposite said mandrel.

2. In a machine for making tubes, the combination of a stationary intermittently rotatable mandrel, means for rotating said mandrel to form tubes from strip material, receptacle means movable in the axial plane of the mandrel toward and away from said mandrel so as to be brought into axial alignment therewith and in timed relation thereto, means for ejecting said wound tubes into said receptacle means as said receptacle means comes opposite said mandrel and means to forcibly press said wound tubes into said receptacle means.

3. In a machine for making tubes, the combination of a stationary intermittently rotatable mandrel, means for rotating said mandrel to form tubes from strip material, receptacle means movable in the axial plane of the mandrel toward and away from said mandrel so as to be brought into axial alignment therewith and in timed relation thereto, means for ejecting said wound tubes into said receptacle means as said receptacle means comes opposite said mandrel, means to forcibly press said wound tubes into said receptacle means and means to eject said tubes from said receptacle means after a predetermined interval of time.

4. In a machine for making tubes, the combination of a stationary intermittently rotatable mandrel, means for rotating said mandrel to form tubes from strip material with an adhesive between the convolutions thereof, receptacle carrier means, a plurality of receptacles mounted thereon and adapted to be. moved in the axial plane of the mandrcl toward and away from said mandrel so as to be brought with axial alignment therewith and in timed relation thereto, means for ejecting each successive wound tube into one of said receptacles as it comes into axial alignment with said mandrel, means for forcibly pressing said tube into said receptacle after it has passed out of its receiving position to thereby hold said tube in its wound position, and means for ejecting said formed tube from its receptacle after the adhesive has partially set.

5. In a machine for malring, tubes, the combination of a singlewinding and ejecting mandrel mounted in a fixed axial position and adapted to be rotated to wind tubes from strip material, means for intermittently rotating said mandrel, means for ejecting said wound tubcs, means for setting said ejecting means and-releasing the same to eject said tube, a conveyor, receptacle means on said conveyor for holding said wound tube to allow partial setting of the adhesive and adapted to hold the tube in its proper form, and ejector means for ejecting the formed tube from said receptacle means.

6. In a machine for making tubes, the combination of a winding mandrel adapted to be rotated to wind tubes from strip material, means for intermittently rotating said mandrel a whole and a fraction of a complete revolution in one direction to wind :1 tube, and means for rotating said mandrel said fractional revolution in the reverse direction to place said mandrel in proper position to wind the next tube.

7. In a machine for makin comhination'of a winding mend tubes, the

rel adapted to be rotated to wind tubes from strip material, means for intermittently rotating said mandrel in one direction to wind a tube, and means for rotating said mandrel a fractional revolution in the reverse direction to place said mandrel in proper position to wind the next tube.

8. In a machine for makin tubes, the combination of a winding man el adapted to be rotated to Wind tubes froni strip material, means for intermittently rotating said mandrel in one direction to wind a tube, meansfor rotating said mandrel a fractional revolution in the reverse direction to place said mandrel in proper position to wind the next tube, and means for arresting said mandrel from further rotation after it has been moved to its said proper position.

9. In a machine for making tubes, the combination of a winding mandrel adapted to be rotated to wind tubes from strip material, means for intermittently rotating said mandrel in one direction to wind a tube, and means for rotating said mandrel a fractional revolution in the reverse direction to place said mandrel in proper osition to wind the next tube and for loc ing said mandrel against rotation after it has been moved to its said proper position.

10. In a machine for making tubes, the combination of a winding mandrel for winding strips of material into tubes, an ejector for the mandrel finers projecting beyond the periphery of and adapted to slide in slots formed in said mandrel, uard means attached to the exposed end'o said fingers and adapted to present a smooth sin-face in the plane of rotation of said fingers to prevent said fingers from presenting sharp exposed-portions during rotation, and means for. operating said ejector to eject the wonndftube from said mandreL' 11. In a marhine for making tubes, the combination of a winding mandrel for winding strips of material into tubes, an ejector for the niandrel' with fingers projecting beyond -tihefperiphery of and adapted to slide ins o sfformed in said mandrel, a rin surroundn g said mandrel and attached totheekxtremities of said fingers, and means for operating saidiejector to eject the wound tube from said mandrel and for returning said ejector to its normal position after said tube has been ejected.

12. In a machine for making tubes, the combination of a winding mandrel adapted to be rotated to wind tubes from blanks of strip material, means for intermittently rotating said mandrel, a final feeding station from which said blanks are to be fed to said mandrel, a support for a stack of said blanks and adapted to be raised and lowered, means operating in timed relation with said mandrel rotating means to intermittently raise said support and stack an amount substantially equal to the thickness of said blank, means for moving one of said blanks to an intermediate feeding station, means to feed said blank from said intermediate station to said final station, and means for feeding said blank from said first station to said mandrel for each intermittent winding rotation of said mandrel.

In testimony whereof I have signed my name to this specification.

JAMES D. REIFSNYDER.

said mandrel against rotation after it has been moved to its said proper position.

10. In a machine for making tubes, the combination of a Winding mandrel for winding strips of material into tubes, an ejector for the mandrel with fingers projecting beyond the periphery of and adapted to slide in slots formed in said mandrel, guard means attached to the exposed end of said fingers and adapted to present a smooth surface in the plane of rotation of said fingers to prevent said fingers from presenting sharp exposed portions during rotation, and means for operating said ejector to eject the Wound tube from said mandrel.

11. In a machine for making tubes, the combination of a Winding mandrel for winding strips of material into tubes, an ejector for the mandrel with fingers projecting beyond the periphery of and adapted to slide in slots formed in said mandrel, a ring surrounding said mandrel and attached to the extremities of said fingers, and means for operating said ejector to eject the wound tube from said mandrel and for returning said ejector to its normal position after said tube has been ejected.

12. In a machine for making tubes, the combination of a winding mandrel adapted to be rotated to wind tubes from blanks of strip material, means for intermittently rotating said mandrel, a final feeding station from which said blanks are to be fed to said mandrel, a support for a stack of said blanks and adapted to be raised and lou= cred, means operating in timed relation with said mandrel rotating means to intermittently raise said support and stack an amount substantially equal to the thickness of said blank, means for moving one of said blanks to an intermediate feeding station, means to feed said blank from said intcr mediate station to said final station, and means for feeding said blank from said first station to said mandrel for each intermittent Winding rotation of said mandrel.

In testimony whereof I have signed my name to this specification.

JAMES D. REIFSNYDER.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1.573,574, granted February 16,

1926, upon the application of James D. Reifsnyder, of Brooklyn, New 1 ork, for an improvement in Tube-Forming Machines, errors appear in the printed specification requiring correction as follows: Page 5, line 124, for the Word slots read slot; page 10, line ll, claim 12, for the Word first, read final; and that the said Letters Patent should be read with these corrections the record of the case in the Patent Office.

therein that the same may conform to Signed and sealed this 30th day of March, A. D. 1926.

[SEAL] M. J. MOORE, Acting Uonmn'ssz'oner of Patents.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,573,574, granted February 16, 1926, upon the application of James D. Reifsnyder, of Brooklyn New York, for an improvement in Tube-Forming Maehinee, errors appear in the printed specification requiring correction as follows: Page 5, line 124, for the word slots read slot,- page 10, line 44, claim 12, for the Word first, read final, and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the ease in the Patent ()fiice.

Signed and sealed this 30th day of March, A. D. 1926.

[emu] M. J. MOORE,

Acting Commissioner of Patents. 

